JP2001267171A - Method for winding outer revolute coil and winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure of an outer revolute coil winder and to improve productivity. SOLUTION: The outer revolute coil of the winder 1 is extended at both ends of a wire material 11 from an outermost peripheral layer of the coil. The winder 1 comprises a drum core (winding core) 4 rotating at an axis as a center to wind the material 11, a flyer 43 revolving around the axis, and a second tensioner (wire material locking mechanism) 61 for locking the material 11 supplied from a first tensioner (wire material supplying mechanism) 51 via the core 4. The method for winding the outer revolute coil comprises the steps of rotating the drum core 4 and the flyer 43 in the same direction to wind the wire material 11 supplied from the first tensioner 51 on the core 4, and revolving the flyer 43 around the axis to wind the wire material 11 fed from the second tensioner 61 on the core 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of winding an externally wound coil having both ends of a wire extending from an outermost layer of the coil, and to an improvement of a winding machine.

[0002]

2. Description of the Related Art In forming an externally wound coil, a process of winding a wire by rotating a core and revolving the wire with respect to the core via a flyer or the like are performed. And winding it.

[0003] Conventionally, as a winding machine for this type of externally wound coil, there has been a device provided with a wire storage device that draws a wire into a flyer and winds it in advance. However, there is a problem that the process of winding the wire around the wire storage device is troublesome and productivity is low (Japanese Patent Publication No. 8-15376, Japanese Patent Application Laid-Open No. Sho 62-163).
23346, JP-A-5-90056, etc.).

In addition, since the step of winding the wire by rotating the core and the step of revolving the wire around the core and winding are performed separately, there is a problem that it takes a long working time. (See Japanese Patent Publication No. Hei 8-15376, etc.).

[0005] Further, the present applicant has filed a Japanese Patent Application No.
No. 93539 proposes a winding machine provided with an air cylinder that supplies a wire through a rotation center shaft of a flyer and draws out the wire from the flyer and holds the wire in advance. However, as the structure of the winding machine becomes complicated, the process of passing the wire through the rotation center axis of the flyer is troublesome, and the present invention, which has the problem of low productivity, has been made in view of the above problems. It is an object of the present invention to simplify the structure of an externally wound coil winding machine and to improve productivity.

[0006]

The first aspect of the present invention is applied to a method of winding an externally wound coil in which both ends of a wire extend from an outermost layer of the coil.

[0007] A core for rotating the wire around the axis to wind the wire, a flyer for revolving around the axis, a wire supply mechanism for supplying the wire, and a core supplied from the wire supply mechanism for the core. A wire rod locking mechanism that locks the wire core and the flyer in the same direction to wind the wire supplied from the wire rod supply mechanism around the core, and revolves the flyer to revolve the wire rod. The wire rod fed from the stop mechanism is wound around a core.

A second invention is characterized in that, in the first invention, the rotation speed of the flyer is higher than the rotation speed of the core.

The third aspect of the invention is applied to a winding machine of an externally wound coil in which both ends of a wire both extend from the outermost layer of the coil.

[0010] A core for rotating the wire around the axis to wind the wire, a flyer for revolving around the axis, a wire supply mechanism for supplying the wire, and a core supplied from the wire supply mechanism for the core. A wire rod locking mechanism that locks the wire core and the flyer in the same direction to wind the wire supplied from the wire rod supply mechanism around the core, and revolves the flyer to revolve the wire rod. The wire rod fed from the stop mechanism is wound around a core.

[0011]

According to the first and third aspects of the present invention,
By winding the wire supplied from the wire supply mechanism around the core, and revolving the flyer and winding the wire fed from the wire locking mechanism around the core, both ends of the wire are both at the outermost periphery of the coil. An outer coil wound from the layer is formed.

Since the wire is stored in the flyer via the wire locking mechanism, there is no need to provide a wire storage device or an air cylinder for winding the wire, thereby simplifying the structure.
Further, it is not necessary to pass the wire through the rotation center shaft of the flyer or wind the wire around the wire storage device, so that the work time for setting the wire can be reduced, and the productivity can be increased.

According to the second aspect of the present invention, the wires supplied from two directions are wound at the same time in a single step, so that the work time required for winding can be greatly reduced and the productivity can be increased.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0015] As shown in FIG.
Is a core rotation mechanism 1 for rotating the core by rotating the core.
1 and a flyer rotating mechanism 31 that revolves and winds the wire 2 around a winding core via a flyer 43 or the like.

The winding core rotating mechanism 11 includes a first winding jig 13 for chucking the winding core, and a first spindle 14
And a spindle motor 16 that is driven to rotate via a coupling 15 or the like.

The spindle motor 16 has a spindle base 17
, And the spindle table 17 is slidably supported on the base 3 via a rail 18. A ball screw 20 screwed to the spindle table 17 and a moving table drive motor 19 for driving the ball screw 20 to rotate are provided. When the ball screw 20 is rotated by the moving table drive motor 19, the spindle table 17 slides and the first winding jig is rotated. 13 is moved in the axial direction.

The flyer rotating mechanism 31 includes a second winding jig 33 for chucking the core, a second spindle 34 for rotatably supporting the second winding jig 33, and a second spindle 34 via a coupling 35 or the like. Flyer motor 3 that rotates
6 is provided. The flyer motor 36 is fixed to the base 3 via a flyer stand 37.

As shown in FIG. 2, a drum core 4 is provided as a core around which the wire 2 is wound, and the drum core 4 is sandwiched between a first winding jig 13 and a second winding jig 33. Will be retained.

The first winding jig 13 has a concave portion 23 which engages with the flange portion of the drum core 4 and has a suction passage 24 which is open at one end and communicates with a pump (not shown) to suck air. . The drum core 4 is sucked by the negative pressure generated in the recess 23 through the suction passage 24.
Thereby, the drum core 4 can be easily attached to the first winding jig 13, and it is possible to prevent a material made of a brittle material such as a fairite core from being damaged. Note that the first winding jig 13 may use a structure such as a collet chuck.

The second winding jig 33 includes a receiving plate 39 that contacts the flange of the drum core 4 and a spring 40 that presses the receiving plate 39 against the drum core 4. Hole 41 in second winding jig 33
The flange of the drum core 4 is engaged with the hole 41, the receiving plate 39 is slidably inserted, and a spring 40 is interposed between the receiving plate 39 and the hole 41.

The second winding jig 33 is rotatably supported on a shaft 45 of the second spindle 34 via a bearing 42. On the second spindle 34, a flyer 43 extending in the radial direction of the drum core 4 is formed. The flyer 43 is driven to rotate by the flyer motor 36 and revolves around the drum core 4.

As a wire supply mechanism for supplying the wire 2, the wire 2 is fed from a wire source (not shown) and
Is provided. First tensioner 5
1 includes a pair of rotating bodies 52 and 53 that rotate while pinching the wire 2 by the urging force of a spring 54;
The reference numerals 2 and 53 are connected to columns 50 projecting from the base 3. The rotating bodies 52 and 53 are supported so as to rotate with a predetermined friction, and apply a predetermined tension to the wire 2 wound around the drum core 4.

The flyer 43 is provided with a second tensioner 61 for feeding the wire 2 to the drum core 4 as a wire locking mechanism for previously pulling and locking the wire 2 into the flyer 43. The second tensioner 61 uses the urging force of the spring 64 to
And a pair of rotating bodies 62 and 63 that rotate while sandwiching the rotating body. The rotating bodies 62 and 63 are supported so as to rotate with a predetermined friction, and apply a predetermined tension to the wire 2 wound around the drum core 4.

Although the first and second tensioners 51 and 61 are located in the radial direction of the first and second winding jigs 13 and 33, respectively, they do not interfere with each other as the flyer 43 rotates. Offset.

The coil is constructed as described above and wound in the following procedure. The drum core 4 is held between the first winding jig 13 and the second winding jig 33 by sliding the core rotation mechanism 11. The wire 2 supplied from the wire source is drawn out by a predetermined length, and is sandwiched by the second tensioner 61 via the first tensioner 51 and the drum core 4. Thereby, the second tensioner 61
From there, the wire 2 corresponding to the length wound around the drum core 4 extends as an extra length. The drum core 4 is rotated by the core rotation mechanism 11, and the flyer 43 is synchronously rotated in the same direction at twice the speed by the flyer rotation mechanism 31. Accordingly, the drum core 4 rotates to wind the wire 2 sent through the first tensioner 51, and the flyer 43 revolves around the drum core 4 at the same angular velocity as the drum core 4, and rotates via the second tensioner 61. The wire 2 to be sent is wound. After the core rotation mechanism 11 and the flyer rotation mechanism 31 have each been rotated a predetermined number of times, the operation is stopped. The wire 2 extending to the first tensioner 51 is cut near the drum core 4. The drum core 4 is removed from between the first winding jig 13 and the second winding jig 33 by sliding the core rotation mechanism 11.

In this way, as shown in FIG. 3, the wire 2 is wound around the winding drum portion of the drum core 4 in two rows in the axial direction in a multi-layer manner, and both ends of the wire 2 are both outermost layers of the coil. An outer coil extending from the outer coil is formed.

Since the wire is stored in the flyer 43 via the second tensioner 61, there is no need to provide a wire storage device for winding the wire 2 or an air cylinder, so that the structure can be simplified. Further, it is not necessary to pass the wire 2 through the rotation center shaft of the flyer 43 or to wind the wire 2 around the wire storage device, and it is possible to shorten the work time for setting the wire 2.

In order to rotate the flyer rotating mechanism 31 at twice the speed in synchronization with the rotation of the drum core 4, the wires 2 supplied from two directions in one process are simultaneously wound around the drum core 4, and The required work time can be reduced by half.

As another embodiment, a step of synchronously rotating the drum core 4 and the flyer 43 to wind the wire 2 sent through the first tensioner 51 and a step of rotating the flyer 43 around the drum core 4 The step of winding the wire 2 sent via the two tensioners 61 may be performed separately.

In this case, first, the flyer 43 is rotated at the same speed in the same direction via the flyer rotating mechanism 31 in synchronization with the rotation of the drum core 4 via the core rotating mechanism 11. As a result, the drum core 4 rotates together with the flyer 43 and the wire rod 2 sent through the first tensioner 51 is rotated.
Is wound. Subsequently, the rotation of the core rotation mechanism 11 is stopped, and the flyer 43 revolves via the flyer rotation mechanism 31. Thereby, the drum core 4 winds the wire 2 sent through the second tensioner 61.

As still another embodiment, when forming an air-core coil, the wire is wound around the core, the surface material of the wire is hardened by blowing hot air, and the self-standing coil is removed from the core. do it. Further, a normal bobbin may be used or the winding may be performed in the same manner.

As still another embodiment, a traverse mechanism for winding a wire while moving it in the lateral direction may be provided to increase the number of turns.

It is apparent that the present invention is not limited to the above-described embodiment, and that various changes can be made within the scope of the technical idea.

[Brief description of the drawings]

FIG. 1 is a perspective view of an externally wound coil winding machine showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the externally wound coil winding machine.

FIG. 3 is a sectional view of the coil.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 outer and outer coil winding machine 2 wire 4 drum core (winding core) 11 core rotating mechanism 13 first winding jig 31 flyer rotating mechanism 33 second winding jig 51 first tensioner (wire feeding mechanism) 43 flyer 61 first Two tensioner (wire rod locking mechanism)

Claims (3)

[Claims] 1. A winding method for an externally wound coil in which both ends of a wire both extend from an outermost layer of the coil, comprising: a winding core for winding the wire by rotating about an axis; and revolving around the axis. A wire rod supply mechanism that supplies the wire rod; and a wire rod locking mechanism that locks the wire rod supplied from the wire rod supply mechanism to the flyer via the core. Is rotated in the same direction to wind the wire supplied from the wire supply mechanism around the core, and the flyer is revolved to wind the wire fed from the wire locking mechanism around the core. A method for winding an externally wound coil. 2. The method according to claim 1, wherein a rotation speed of the flyer is higher than a rotation speed of the winding core. 3. An externally wound coil winding machine in which both ends of a wire both extend from an outermost layer of the coil, wherein the winding core rotates around an axis to wind the wire, and revolves around the axis. A wire rod supply mechanism that supplies the wire rod; and a wire rod locking mechanism that locks the wire rod supplied from the wire rod supply mechanism to the flyer via the core. Is rotated in the same direction to wind the wire supplied from the wire supply mechanism around the core, and the flyer is revolved to wind the wire fed from the wire locking mechanism around the core. An external winding coil winding machine characterized in that it is configured to perform.